<template>
  <div class="container">
    <el-row>
      <el-col :span="12" :xs="0"></el-col>
      <el-col :span="12" :xs="24">
        <el-form
          class="login_form"
          ref="loginForms"
          :model="loginForm"
          :rules="rules"
        >
          <h1>Hello</h1>
          <h2>电影后台管理系统</h2>
          <el-form-item prop="username">
            <el-input :prefix-icon="User" v-model="loginForm.login"></el-input>
          </el-form-item>
          <el-form-item prop="password">
            <el-input
              :prefix-icon="Lock"
              type="password"
              v-model="loginForm.password"
              show-password
            ></el-input>
          </el-form-item>
          <el-form-item>
            <el-button
              :loading="loading"
              type="primary"
              style="width: 100%"
              @click="login"
            >
              登录
            </el-button>
          </el-form-item>
        </el-form>
      </el-col>
    </el-row>
  </div>
</template>

<script setup lang="ts">
import { User, Lock } from '@element-plus/icons-vue'
import { reactive, ref } from 'vue'
import useUserStore from '@/store/modules/user'
import { useRouter, useRoute } from 'vue-router'
import { ElNotification } from 'element-plus'
import { getTime } from '@/util/time'

let userStore = useUserStore()
let $router = useRouter()
let $route = useRoute()
let loginForm = reactive({
  login: '123123',
  password: '123123',
})
let loginForms = ref()
let loading = ref(false)

const login = async () => {
  // debugger
  await loginForms.value.validate()
  loading.value = true
  try {
    await userStore.userLogin(loginForm)
    let redirect: any = $route.query.redirect
    await $router.push({ path: redirect || '/' })
    ElNotification({
      type: 'success',
      title: `hi ${getTime()}好`,
      message: '欢迎回来',
    })
    loading.value = false
  } catch (err: any) {
    loading.value = false
    ElNotification({
      type: 'error',
      message: err.message,
    })
  }
}
//自定义校验规则函数
const validatorUserName = (rule: any, value: any, callback: any) => {
  //rule:即为校验规则对象
  //value:即为表单元素文本内容
  //函数:如果符合条件callBack放行通过即为
  //如果不符合条件callBack方法,注入错误提示信息
  if (value.length >= 5) {
    callback()
  } else {
    callback(new Error('账号长度至少五位'))
  }
}

const validatorPassword = (rule: any, value: any, callback: any) => {
  if (value.length >= 6) {
    callback()
  } else {
    callback(new Error('密码长度至少六位'))
  }
}
const rules = {
  login: [
    {
      trigger: 'change',
      validator: validatorUserName,
    },
  ],
  password: [
    {
      trigger: 'change',
      validator: validatorPassword,
    },
  ],
}
</script>

<style scoped lang="scss">
.container {
  width: 100%;
  height: 100vh;
  background: url('@/assets/images/background.jpg');
  background-size: cover;

  .login_form {
    position: relative;
    top: 30vh;
    width: 80%;
    padding: 40px;
    background: url('@/assets/images/login_form.png');
    background-size: cover;

    h1 {
      font-size: 40px;
      color: white;
    }

    h2 {
      margin: 20px 0;
      font-size: 20px;
      color: white;
    }
  }
}
</style>
